Dynamic Routing provides the ability to automatically remove routes from the routing table when other RIP neighbors delete them.

• A. True
• B. False
• C. Not sure
• D. Not applicable

Answer: (B)

Dynamic routing relies on updates and timers to determine route validity. In RIP, if a route becomes unreachable because a neighbor goes down or stops advertising it, the change is propagated as an update with a metric indicating unreachable (usually 16). The router then marks the route invalid and, after the invalid timer expires, garbage-collects and removes it from the routing table. So routes aren’t removed instantly just because a neighbor deletes them; removal happens after the protocol detects the loss of reachability and the timers run out.